Place it right after the offending line in an edit, then follow with Censor Beep to cover the words that follow, and finish with Anime Wow for the stunned reaction from everyone else in the scene.
About this sound
This four-second voice clip has Pomni cutting in with a firm, flustered warning that someone cannot say that. Her quick delivery sounds startled and exasperated, turning an awkward remark into a joke in an instant. It feels playful and scolding at once, like catching a friend mid-sentence before the words can land.